Receive the latest grizzly-detail updates in your inbox

When the Bears walked onto the field for minicamp on Tuesday, the field they played on was the same, but that's about it. Everything else was different as the players faced their first mini-camp with new head coach, Marc Trestman.

The Bears have already been in the weight room for strength and conditioning organized team activies. However, this was the players' chance to get on the field. Though the practices this week are just two hours long, Trestman was excited to get to see what his players can accomplish.

"We've seen them on tape and we've had a chance to interact with them in meetings," Trestman said to the Bears website. "But to be on the football field with them is going to be awesome. It'll give us an opportunity to take what we've done in the meetings rooms and get it out on the field and see these guys work."

As Trestman had talked about since becoming the coach of the Bears, there were some big changes on offense. As promised, Devin Hester didn't run a single route on offense, instead focusing on returns. The competition for the starting right tackle spot produced one finding: Trestman viewed third-year player Gabe Carimi more as a guard than a tackle. Carimi played at both positions in 2012.

But Trestman and his new staff won't get his hands on everyone. Wide receiver Brandon Marshall missed the first practice because he's still rehabilitating from hip surgery. Kicker Robbie Gould also missed practice because of a calf issue. Gould said he is still a few weeks away from practicing.

Other than Gould and Marshall, the Bears had 100 percent participation in the minicamp. With a new coach, every practice is an audition. Even the top players have to prove themselves to hold onto their starting spot.